Electrical table carrier mechanism

ABSTRACT

An electrical table carrier mechanism includes two carrying members, a connection member, and two suspension arms, which provide a sufficient supporting force and stability to a tabletop of an electrical table mounted thereto. The carrying members, the connection member and the suspension arms are all formed through pressing and folding of metal plates so that the material cost and the machining cost are low and products thereof are made light in weight to facilitate transportation thereof so as to improve competition power of the products.

(a) TECHNICAL FIELD OF THE INVENTION

The present invention relates generally to a carrier mechanism of anelectrical table, and more particularly to a structure design of acarrier mechanism featuring length adjustability for accommodatingtabletops of different lengths, so that various advantages, includinglowering material and fabrication costs and making products light inweight, can be achieved with the design of this invention.

(b) DESCRIPTION OF THE PRIOR ART

As shown in FIGS. 1 and 2, a known electrical table 1 that provides afunction of adjustment comprises, at least, a pair of table legs 11, acarrier mechanism 12 and a tabletop 13, wherein the pair of table legs11 is provided, in an interior thereof, with an operation mechanism (notshown). The table legs 11 each have a top to which a mechanism seat 111is mounted, and a lower end of the table leg 11 is provided with a legbase 112 for positioning on a ground surface. The carrier mechanism 12comprises a plurality of main frame tubes 121 that are each of arectangular configuration and set horizontally, a connection tube 122,and suspension arms 123 coupled to the main frame tubes 121,respectively.

Driving, through one of the mechanism seats 111, the operation mechanismthat is arranged internal of the table legs 11 to operate allows thetable legs 11 to undergo an ascending or descending operation to achievean effect of adjusting a height of the electrical table 1. Extension orretraction realized through the main frame tubes 121 and the connectiontube 122 of the carrier mechanism 12 makes it possible to vary ahorizontal length in order to accommodate different lengths of thetabletop 13.

However, in the known carrier mechanism 12, the plurality of main frametubes 121 and the connection tube 122 must be cut into desired lengthsin the fabrication thereof. In addition, welding is necessarily carriedout on the main frame tubes 121 and the connection tube 122 to mount aplurality of connection plates 124 for fixing a tabletop 13. It iscommonly known that cutting and machining rectangular tubes is anexpensive operation and an extended period of time is necessary for suchan operation. All such adverse conditions make the fabricationexpenditure of the carrier mechanism 12 relatively high, leading to anexcessively high cost of the electrical table 1 that is disadvantageousfor sale.

SUMMARY OF THE INVENTION

The present invention relates to an electrical table carrier mechanism,which is made to overcome the drawbacks that the known electrical tablecarrier mechanism is of a high price due to excessively high materialand machining costs.

To achieve the above objective, the present invention provides anelectrical table carrier mechanism. The electrical table carriermechanism according to the present invention at least comprises twocarrying members, a connection member and two suspension arms that areformed through pressing and folding metal plates, wherein the twocarrying members each comprise a carrying surface in a planar form. Thecarrying surface has two opposite sides each comprising a side platevertically extending downward therefrom and the two side plates defineand delimit a receiving space. One of the side plates is extended andfolded from a location in proximity of one end toward an opposite end toform a partially open channel. The connection member comprises a firstplanar plate, a second planar plate, and a vertical plate connected tothe first planar plate and the second planar plate. The suspension armseach comprise a flat board in a planar form. A notch is formed in amiddle portion of the flat board. The flat board comprises two lugsextending downward from two ends of the notch and an edge boardvertically extending downward from one side of the notch.

The efficacy provided by application of the above structure according tothe present invention is that the carrier mechanism of the presentinvention comprises two carrying members, a connection member, and twosuspension arms, which provide a sufficient supporting force to atabletop of an electrical table during assembling thereof. The carryingsurfaces of the carrying members, the first planar plate of theconnection member, and the flat boards of the suspension arms arearranged to provide the tabletop with excellent levelness and stabilityin fixing thereof. In addition, the two carrying members, the connectionmember, and the two suspension arms of the carrier mechanism are allformed through pressing and folding metal plates so that the materialcost and the processing cost are both low and products thereof are madelight in weight, which facilitates transportation of the products,thereby improving competition power of the products.

The foregoing objectives and summary provide only a brief introductionto the present invention. To fully appreciate these and other objects ofthe present invention as well as the invention itself, all of which willbecome apparent to those skilled in the art, the following detaileddescription of the invention and the claims should be read inconjunction with the accompanying drawings. Throughout the specificationand drawings identical reference numerals refer to identical or similarparts.

Many other advantages and features of the present invention will becomemanifest to those versed in the art upon making reference to thedetailed description and the accompanying sheets of drawings in which apreferred structural embodiment incorporating the principles of thepresent invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view showing a prior art electrical table.

FIG. 2 is a schematic view showing an operation of the prior artelectrical table.

FIG. 3 is an exploded view of the present invention.

FIGS. 4-7 are schematic views illustrating the present invention.

FIG. 8 is a cross-sectional view showing a portion of a combination ofthe present invention and a tabletop.

FIG. 9 is a schematic view showing a suspension arm set on and inabutting engagement with a mechanism seat according to the presentinvention.

FIGS. 10-13 show another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are exemplary embodiments only, and are notintended to limit the scope, applicability or configuration of theinvention in any way. Rather, the following description provides aconvenient illustration for implementing exemplary embodiments of theinvention. Various changes to the described embodiments may be made inthe function and arrangement of the elements described without departingfrom the scope of the invention as set forth in the appended claims.

Firstly, referring to FIG. 3, an electrical table carrier mechanism 2according to the present invention at least comprises two carryingmembers 21 formed by pressing and folding metal plates, a connectionmember 22, and two suspension arms 23. The two carrying members 21 eachcomprise a carrying surface 211 in a planar form. The carrying surface211 has two opposite sides from each of which a side plate 212 extendsdownward. The two side plates 212 define and delimit therebetween areceiving space 213. One of the side plates 212 is extended and foldedfrom a location in proximity of one end toward an opposite end to form apartially open channel 214.

The connection member 22 comprises a first planar plate 221, a secondplanar plate 222, and a vertical plate 223 connected to the first planarplate 221 and the second planar plate 222. In an embodiment, the firstplanar plate 221 comprises at least one fixing plate 2211 for thepurpose of fixing.

The suspension arms 23 each comprise a flat board 231 in a planar form,and a middle portion of the flat board 231 is formed with a notch 232.The flat board 231 is extended downward from two ends of the notch 232to form two lugs 233, and is also formed, in a vertical direction, withan edge board 234 extending downward from one side of the notch 232.

Also referring to FIGS. 4-7, the electrical table carrier mechanismaccording to the present invention is generally applicable to anelectrical table that is capable of adjustment of height and alsoadjustment of tabletop length. The electrical table comprises a pair oftable legs 3 and a tabletop 4. The pair of table legs 3 is coupled withthe carrier mechanism 2 according to the present invention. The tablelegs 3 each comprise a main post 31 and a leg base 32. The main post 31is provided, in an interior thereof, with an operation mechanism. Theoperation mechanism can be of any known structural arrangement or designand constitutes no novel part of this invention so that further detailswill not be discussed herein. The main post 31 has top to which amechanism seat 33 that is operatively coupled with the internallyarranged operation mechanism is mounted. The main post 31 of each of thetable legs 3 has a lower end that is coupled to a leg base 32positionable on a ground surface or a fixture surface.

The tabletop 4 is mounted to the carrier mechanism 2 according to thepresent invention.

In practice, firstly, the two carrying members 21 of the carriermechanism 2 are set to respectively cover, with one end thereof, themechanism seats 33 of two table legs 3. The receiving space 213 definedbetween the two side plates 212 of each of the two carrying members 21have a width that corresponds to the respective mechanism seat 33 sothat the mechanism seat 33 is receivable and thus fit into the receivingspace 213. With the mechanism seat 33 being so covered by the carryingmembers 21, the two side plates 212 of the carrying member 21 areexactly located on and positioned against two opposite sides of themechanism seat 33. Next, the two suspension arms 23 of the carriermechanism 2 are respectively set on the mechanism seats 33 of the twotable legs 3 and the notches 232 of the suspension arms 23 respectivelyreceive the carrying members 21 to fit therein, allowing the two lugs233 of each of the suspension arms 23 to be respectively positioned onoutside surfaces of the two side plates 212 of the respective carryingmember 21 and a lower end of the edge board 234 of each of thesuspension arms 23 is set on and in abutting engagement with themechanism seat 33. The threading fasteners A are then applied topenetrate or screw through the lugs 233 of the suspension arms 23, theside plates 212 of the carrying members 21, and the mechanism seats 33for fixing, thereby combining the two carrier mechanisms 2 with the twotable legs 3, respectively, as a unitary structure.

Then, two ends of the connection member 22 are respectively receivedinto interior spaces of the channels 214 of the carrying members 21,wherein the first planar plate 221 and the second planar plate 222 ofthe connection member 22 are respectively positioned against a back sideof the carrying surface 211 of each carrying member 21 and a bottom ofeach channel 214, while the vertical plate 223 of the connection member22 is positioned against one sidewall of each channel 214, namely aninside surface of the side plate 212 of each carrying member 21. Basedon a desired length of the tabletop 4, an overall length of theconnection member 22 and the two carrying members 21 so combined isselected and adjusted, and then threading fasteners B are applied toscrew from an outside surface of the channel 214 of each carrying member21 to have the connection member 22 and the two carrying members 21fixedly coupled to each other. Afterwards, the tabletop 4 is laid flaton the two carrying members 21, the connection member 22, and thesuspension arms 23 of the carrier mechanism 2, and finally, a pluralityof threading fasteners C are applied to respectively screw through thecarrying surfaces 211 of the carrying members 21, the fixing plate 2211of the first planar plate 221 of the connection member 22, and the flatboards 231 of the suspension arms 23 to further screw into the tabletop4. Meanwhile, a control box 5 that is operable to control operation ofthe mechanism seats 33 is disposed in the receiving space 213 of one ofthe carrying members 21 with the control box 5 being electricallyconnected to the mechanism seats 33 to thereby complete assembly of theelectrical table. After this, the control box 5 can be operated todrive, through the mechanism seats 33, the main posts 31 of the tablelegs 3 to ascend and/or descend so as to achieve the effect of heightadjustment.

Further, also referring to FIG. 8, in combining the present inventionwith the tabletop 4, the tabletop 4 is set to have a back side thereoflaid flat on and fixed to the carrying members 21, the connection member22, and the suspension arms 23 of the carrier mechanism 2 of the presentinvention, wherein with the carrier mechanism 2 according to the presentinvention, the carrying surfaces 211 of two carrying members 21, thefirst planar plate 221 of the connection member 22, and the flat boards231 of the two suspension arms 23 allow the tabletop 4 to gain excellentlevelness and stability during fixing, while the side plates 212 and thechannels 214 of the two carrying members 21 that vertically projectdownward and the first planar plate 221, the second planar plate 222,and the vertical plate 223 of the connection member 22 are arranged tohave the carrying members 21 and the connection member 22collaboratively increase a supporting strength of an overall structureof the carrier mechanism 2, so that even though they are fabricated withmetal sheets may still offer sufficient strength to support the tabletop4. Further, as shown in FIGS. 7 and 9, the lower ends of the edge boards234 of two suspension arms 23

the edge board 234 are set on and placed in abutting engagement with themechanism seats 33 so that with the edge boards 234, which are generallyvertically arranged, abutting the mechanism seat 33, a better supportingstrength could be provided by the two suspension arms 23 to support thetabletop 4.

Further, for a control box 5 that has an excessively large size, whenthe connection member 22 is fit into the channels 214 of the carryingmembers 21, internal spaces of the channels 214 and the receiving space213 are reduced due to the connection member 22 penetrating therein sothat the large-sized control box 5 may not be fixed therein. To handlesuch an issue, as shown in FIG. 10, in a different embodiment of thisinvention, the connection member 22, which is also formed throughpressing and folding a metal plate, is structured such that theconnection member 22 comprises a first planar plate 221, a second planarplate 222, and a vertical plate 223 connected to the first planar plate221 and the second planar plate 222; however, the first planar plate 221and the second planar plate 222 are respectively extended from twoopposite sides of the vertical plate 223 in opposite directions and twoside portions of the second planar plate 222 are each formed with anelongated slot 2221 penetrating therethrough.

Further, as shown in FIG. 11, in practice, the connection member 22 arefit to outside surfaces of the channels 214 of the two carrying members21, and after a desired adjustment of length is done, a plurality ofthreading fasteners B are applied to set through the elongated slots2221 on the two side portions of the second planar plate 222 of theconnection member 22 to screw into the channels 214 of the two carryingmembers 21 to fixedly couple the connection member 22 with the twocarrying members 21. Further, the suspension arms 23 each comprise aflat board 231 in a planar form and the flat board 231 is formed, in amiddle portion thereof, with a notch 232. The notch 232 of thesuspension arm 23 receives the respective carrying member 21 to fittherein with two lugs 233 of the suspension arm 23 respectivelypositioned against outside surfaces of the two side plates 212 of therespective carrying member 21. Then, threading fasteners A are screwedthrough the lugs 233 of the suspension arms 23, the side plates 212 ofthe carrying members 21, and the mechanism seats 33 for fixing, therebycombining the two carrier mechanisms 2 with the two table legs 3,respectively, as a unitary structure. Next, also referring to FIGS. 12and 13, the tabletop 4 is laid flat on the carrying members 21, theconnection member 22, and the suspension arms 23 of the carriermechanism 2, finally, a plurality of threading fasteners C are appliedto respectively screw through the carrying surfaces 211 of the carryingmembers 21, the first planar plate 221 of the connection member 22, aand the flat boards 231 of the suspension arms 23 to further screw intothe tabletop 4. Since the connection member 22 is set on outsidesurfaces of the channels 214 of the two carrying members 21, a largeamount space of the receiving space 213 of each of the two carryingmembers 21 can be preserved for receiving the large-sized control box 5to be disposed therein. In this way, the large-sized control box 5 isreceivable in the receiving space 213 of one of the carrying members 21and the control box 5 is electrically connected with the mechanism seat33 to complete the assembly of the electrical table. After this, thecontrol box 5 can be operated to drive, through the mechanism seats 33,the main posts 31 of the table legs 3 to ascend and/or descend so as toachieve the effect of height adjustment.

The efficacy of the present invention is that the carrier mechanism 2according to the present invention comprises two carrying members 21, aconnection member 22, and two suspension arms 23, which provide asufficient supporting force to a tabletop 4 fixed thereon, wherein thecarrying surfaces 211 of the carrying members 21, the first planar plate221 of the connection member 22, and the flat boards 231 of thesuspension arms 23 are arranged to provide the tabletop 4 with excellentlevelness and stability. In addition, the carrying members 21, theconnection member 22, and the suspension arms 23 of the carriermechanism 2 are all formed through pressing and folding metal plates sothat the material cost and the processing cost are both low and productsthereof are made light in weight, which facilitates transportation ofthe products, thereby improving competition power of the products.

It will be understood that each of the elements described above, or twoor more together may also find a useful application in other types ofmethods differing from the type described above.

While certain novel features of this invention have been shown anddescribed and are pointed out in the annexed claim, it is not intendedto be limited to the details above, since it will be understood thatvarious omissions, modifications, substitutions and changes in the formsand details of the device illustrated and in its operation can be madeby those skilled in the art without departing in any way from the claimsof the present invention.

I claim:
 1. An electrical table carrier mechanism, comprising: twocarrying members, each of which comprises a carrying surface in a planarform and having two sides each comprising a side plate verticallyextending downward therefrom, the two side plate defining and delimitinga receiving space, wherein one of the side plates is extended and foldedfrom a location in proximity of one end toward an opposite end to form apartially open channel; a connection member fit into interior spaces ofthe channels of the two carrying members, the connection membercomprising a first planar plate, a second planar plate, and a verticalplate connected to the first planar plate and the second planar plate;and two suspension arms, each of which comprises a flat board in aplanar form, a notch being formed in a middle portion of the flat boardto receive a respective one of the carrying members to fit therein, theflat board comprising two lugs extending downward from two ends of thenotch.
 2. The electrical table carrier mechanism according to claim 1,wherein the first planar plate of the connection member comprises atleast fixing plate for fixing.
 3. The electrical table carrier mechanismaccording to claim 1, wherein each of the suspension arms comprises anedge board extending downward from one side of the notch.
 4. Anelectrical table, comprising the electrical table carrier mechanismaccording to claim 1 and a pair of table legs and a tabletop, whereinthe table legs each comprise a main post and a leg base, the main postbeing provided therein with an operation mechanism, the main post havinga top to which a mechanism seat that is operatively coupled with theinternally arranged operation mechanism is mounted, the two carryingmembers of the carrier mechanism being set to respectively cover, withone end thereof, mechanism seats on the main posts of the table legs,respectively, the tabletop having a back side that is positioned on andfixed to the carrying members, the connection member, and the suspensionarms of the carrier mechanism.
 5. The electrical table according toclaim 4, wherein the mechanism seats on the tops of the main posts ofthe table legs of the electrical table are each disposed in thereceiving space defined by the side plates of a respectively one of thecarrying members.
 6. The electrical table according to claim 5, whereineach of the mechanism seats has a width that corresponds to a width ofthe receiving space defined by the two side plates of the respective oneof the carrying members.
 7. The electrical table according to claim 4,wherein the edge boards of the suspension arms of the carrier mechanismare set on and in abutting engagement with the mechanism seats on thetops of the main posts of the table legs of the electrical table,respectively.
 8. The electrical table according to claim 4, wherein acontrol box is disposed in the receiving spaces of the carrying membersof the carrier mechanism to control operation of the mechanism seats. 9.An electrical table carrier mechanism, comprising: two carrying members,each of which comprises a carrying surface in a planar form and havingtwo sides each comprising a side plate vertically extending downwardtherefrom, the two side plate defining and delimiting a receiving space,wherein one of the side plates is extended and folded from a location inproximity of one end toward an opposite end to form a partially openchannel; a connection member fit to outside of the channels of the twocarrying members, the connection member comprising a first planar plate,a second planar plate, and a vertical plate connected to the firstplanar plate and the second planar plate, the first planar plate and thesecond planar plate extending from two opposite sides of the verticalplate in opposite directions; and two suspension arms, each of whichcomprises a flat board in a planar form, a notch being formed in amiddle portion of the flat board to receive a respective one of thecarrying members to fit therein, the flat board comprising two lugsextending downward from two ends of the notch.
 10. The electrical tablecarrier mechanism according to claim 9, wherein the second planar platehas two side portions each formed with an elongated slot.
 11. Anelectrical table, comprising the electrical table carrier mechanismaccording to claim 9 and a pair of table legs and a tabletop, whereinthe table legs each comprise a main post and a leg base, the main postbeing provided therein with an operation mechanism, the main post havinga top to which a mechanism seat that is operatively coupled with theinternally arranged operation mechanism is mounted, the two carryingmembers of the carver mechanism being set to respectively cover, withone end thereof, mechanism seats on the main posts of the table legs,respectively, the tabletop having a back side that is positioned on andfixed to the carrying members, the connection member, and the suspensionarms of the carrier mechanism.
 12. The electrical table according toclaim 11, wherein the mechanism seats on the tops of the main posts ofthe table legs of the electrical table are each disposed in thereceiving space defined by the side plates of a respectively one of thecarrying members.
 13. The electrical table according to claim 12,wherein each of the mechanism seats has a width that corresponds to awidth of the receiving space defined by the two side plates of therespective one of the carrying members.
 14. The electrical tableaccording to claim 11, wherein a control box is disposed in thereceiving spaces of the carrying members of the carrier mechanism tocontrol operation of the mechanism seats.